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The triac igniter is a solid-state electronic component used in modern gas burners and boilers to generate the spark for ignition. Unlike traditional spark electrodes, a triac igniter offers precise control and durability, making it a popular choice for efficient heating systems. This part is typically integrated into the ignition control module and works by switching the current to the spark electrode at the right moment. If your burner fails to ignite or experiences intermittent starting issues, a faulty triac igniter could be the cause. Replacing it with a compatible component restores reliable ignition and helps maintain safe operation of the heating equipment.